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    Tamara Driscoll

    Tamara Driscoll is Associate General Counsel at the Bill and Melinda Gates Foundation.

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    If you thought stickers were the preserve of toddlers’ books and playgrounds, think again. Branded stickers are now among the fashion industry’s most sought-after items, something to slap on laptops and lunchboxes as a way of conveying an affinity with a label at a fraction of the cost of buying its goods. Last week, skateboard brand Palace released its winter sticker pack and it sold out within an hour. With other rare versions, such as a single Supreme x Playboy sticker, reselling online for as much as £200, the big-name fashion brands are also jumping on the bandwagon. Calvin Klein Jeans recently made stickers using a classic 1980s image by Richard Avedon of Brooke Shields, while the fashion brand Coach has produced leather stickers, and Berlin’s hip o32c magazine featured sticker sheets from Louis Vuitton’s creative director, Virgil Abloh. A partnership between the luggage manufacturer Rimowa and Danish-Icelandic artist Olafur Eliasson yielded a limited edition of suitcase stickers that sold out immediately. “It shows you’re part of a subculture,” said Dominik Pollin, of the Dover Street Market bookstore, Idea. Michael Kopelman, managing director at Stüssy, said: “It’s fun. You can put them on your car or lunchbox. It’s like tagging. Most won’t notice it, but the people who are interested do spot it.” Although councils in England and Wales restrict flyers and stickers in public places, they are increasingly appearing on lamp-posts and billboards across the country. Alex Powis, co-founder of Stickerarchive, an online collection of popular graphics, said: “Slapping a sticker up … is instant, whereas graffiti takes time and guts. It’s like coded messaging.” Traditionally not for sale by fashion labels, stickers have become an affordable way to tap into a brand. “There’s been a surge of interest in streetwear, lately and stickers are a core part of those cultures,” said Powis. Sarah Andelman, founder of the French concept store Colette, is a collector herself. “I have about three boxes full of all kinds of stickers that I started keeping from the age of 15,” she said. Instagram accounts such as Supstickers, dedicated to indexing and reselling stickers, have more than 50,000 followers. Edson Sabajo, CEO of Dutch streetwear brand Patta, said that sticker fans were taking part in the decades-old pastime of collecting. “Ours reference the latest graphics and give you a memory about a certain timeframe. That’s why they’re always changing,” he said. “People collect them all.” Others agree that the trend is a move away from the internet towards a more DIY approach. “In the last few months, I’ve been making more stickers,” said the electronic musician James Lavelle. “There’s something about having physical things that’s the opposite to a huge digital marketing campaign. There’s an authenticity about them.” Why Paper Planners Are Better Than Digital Planners and Calendars No matter if you’re a die-hard business person, freelance artist, stay-at-home parent or an office regular, you must have some sort of a system to plan, organize and prioritize your tasks and events. That system is crucial to getting things done – whether it stays on your Google calendar, all over your fridge on post-its, or on your paper planner. The rise of digital devices has heavily diminished our habits of note taking, journaling and plan setting on paper. Do you even remember the last time you wrote down more than 2 sentences by hand? Whatever we do and wherever we go, we seem to never forget to take our phones with us. So, clearly, many are moving their organizational systems to the digital world. However, despite the trends, the industry of paper planners, agendas, and productivity journals seems to be well off. More and more people are interested in owning a paper agenda and using it daily. This time we wanted to take a deeper look at the matter – what really makes paper planners better than digital planners? What are the benefits? We did some research and found 5 science-backed benefits you’d enjoy if you switched to paper planner. Also, gift boxes are better as paper, rather than digital ones.

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    The Advantages of Canvas Tarps Tarpaulins (tarps) made of canvas are some of the most versatile tarps on the market today. These tarps can be flame retardant, water resistant, and mildew resistant. Canvas tarps come in several fabric gauges, from 10-ounce to 17-ounce and up. (The higher the number, the heavier and more durable the fabric.) Prices range from around $10 for small, untreated canvas tarps, to hundreds of dollars for large waterproof and fire-retardant models. The tarps come in countless sizes and can be used for a multitude of purposes from painting to landscaping to camping. One of the most common uses of tarps and canvas is to protect furniture, carpets and other items while painting inside or outside. While canvas tarps are more expensive than disposable plastic tarps, they can be used over and over again. Canvas tarps are heavy and will stay in place without a lot of complicated taping and securing, and fit well over curved surfaces. They are usually less slippery than disposable plastic tarps, so they are also safer as there is less chance of injury due to falls. Canvas tarps can be used when landscaping as well. Lightweight waterproof tarps are perfect for protecting grass or plants during snowstorms. Tarps have been used for decades to cover baseball diamonds and football fields during inclement weather; the tarp can be removed as soon as the rain has stopped and play can usually resume immediately. Many of the finest tents are made of canvas. Adventurous and inventive campers can make their own camping accommodations with canvas tarps, straps and a few poles. These structures will provide shade, will be water and wind resistant, and are a fraction of the cost of a regular tent. Canvas tarps are versatile and cost effective. They can be used in many diverse situations and are sturdy and dependable. Tonneau Covers Info [] provides detailed information on truck, hard, fiberglass, folding, retractable, vinyl, and discount tonneau covers. There are various types of tarps such as Steel tarp, Hay tarp, Canvas tarp, Poly tarp, etc. Tarps are large strong sheets that are flexible and water-resistant. Different tarps are made up of different materials like canvas, polyester, polyethylene, etc. Tarps are multi-functional and are used for various purposes. They are used at a construction site to cover the debris or in a flatbed truck or trailer to protect the load that they are carrying. Canvas tarps are one such type of tarp that is used for covering the load carried on a flatbed trailer. They are used for certain kinds of the load because they are breathable and less abrasive. Normally every trucker keeps few canvas traps with them all the time just in case of emergencies. Canvas tarps are lightweight, affordable, and long-lasting. According to me, mytee products is a one-stop destination to buy the best quality canvas tarps. At here you will get the best quality tarps to satisfy all your flatbed needs. Home  Automotive Tips  5 Major Benefits of Canvas Tarps with Features AUTOMOTIVE TIPS 5 Major Benefits Of Canvas Tarps With Features FAISAL- JUL 29, 2020001080 Share On Facebook Tweet It There are various types of tarps such as Steel tarp, Hay tarp, Canvas tarp, Poly tarp, etc. Tarps are large strong sheets that are flexible and water-resistant. Different tarps are made up of different materials like canvas, polyester, polyethylene, etc. Tarps are multi-functional and are used for various purposes. They are used at a construction site to cover the debris or in a flatbed truck or trailer to protect the load that they are carrying. Canvas tarps are one such type of tarp that is used for covering the load carried on a flatbed trailer. They are used for certain kinds of the load because they are breathable and less abrasive. Normally every trucker keeps few lumber tarps with them all the time just in case of emergencies. Canvas tarps are lightweight, affordable, and long-lasting. According to me, mytee products is a one-stop destination to buy the best quality canvas tarps. At here you will get the best quality tarps to satisfy all your flatbed needs. Canvas-Tarps Canvas tarps are multi-functional and have various benefits. Some of the benefits of canvas tarps are given below, 1) Environment friendly: Environment-friendly Canvas tarps are made from cotton; this makes canvas tarps eco-friendly in nature. If canvas tarps are properly taken care of then they last longer than poly tarps. You can easily dispose of canvas tarps when they deteriorate and after a certain time they get completely decompose. Canvas tarps are versatile and you can use them over and over again. Once the canvas tarps wear out then you can use it for some other purpose that is not more important like covering your bike or anything else. All these features make canvas tarps environment friendly. 2) Breathable: Canvas tarps are made up of natural materials so it allows air to flow between the individual fibers. This is an important feature because it doesn’t allow the load to rust. Breathable tarps prevent moisture from building on the load. Hence, these tarps are mostly considered for moisture-sensitive loads. The breathable property of canvas tarps makes it a perfect option to cover load in a flatbed truck during warmer weather. Canvas tarps are ideal for securing various equipment like construction, industrial, farming, etc. These tarps are flame retardant and that is why they can be used in places where combustible materials are present. Because of their amazing features and property, they are considered an excellent choice for equipment loads. Canvas tarps can be used in different atmospheric conditions like heat, rain, or snow because they are breathable and water-resistant. They are mostly used in outdoor conditions to cover any kind of equipment or outdoor furniture. You can use these tarps at construction sites to cover and secure construction materials. Canvas tarps are also used to cover farming equipment because they can provide protection against rust. This eventually increases the life span of the logistics equipment. While you are transporting any product that needs to be fresh throughout the journey then canvas tarps are preferred over any other tarps. Canvas tarps are a good option if you want to protect any stationery load. However, canvas tarps should not be used for covering trailers or canopies because they have low tear strength at the seams. These tarps should also be avoided in high UV areas. Canvas tarps will get dirty over a certain period of time. Hence, it becomes important to keep them clean. Canvas tarps are not machine washable. To clean the canvas tarps just wipe the spots with the help of soap or detergent that are specifically designed for cleaning canvas tarps. This way you can easily clean the canvas tarps. The reason why canvas tarps should not be cleaned using laundry washer and dryer is that these tarps are coated with wax and that can stain the laundry washer and dryer. Tarpaulins (tarps) made of canvas are some of the most versatile tarps on the market today.  These tarps can be flame retardant, water resistant, and mildew resistant.  Canvas tarps come in several fabric gauges, from 10-ounce to 17-ounce and up.  (The higher the number, the heavier and more durable the fabric.)  Prices range from around $10 for small, untreated canvas tarps, to hundreds of dollars for large waterproof and fire-retardant models.  The tarps come in countless sizes and can be used for a multitude of purposes from painting to landscaping to camping. One of the most common uses of canvas tarps is to protect furniture, carpets and other items while painting inside or outside.  While canvas tarps are more expensive than disposable plastic tarps, they can be used over and over again.  Canvas tarps are heavy and will stay in place without a lot of complicated taping and securing, and fit well over curved surfaces.  They are usually less slippery than disposable plastic tarps, so they are also safer as there is less chance of injury due to falls. Canvas tarps can be used when landscaping as well.  Lightweight waterproof tarps are perfect for protecting grass or plants during snowstorms.  Tarps have been used for decades to cover baseball diamonds and football fields during inclement weather; the tarp can be removed as soon as the rain has stopped and play can usually resume immediately. Many of the finest tents are made of canvas.  Adventurous and inventive campers can make their own camping accommodations with canvas tarps, straps and a few poles.  These structures will provide shade, will be water and wind resistant, and are a fraction of the cost of a regular tent. Canvas tarps are versatile and cost effective.  They can be used in many diverse situations and are sturdy and dependable. Tarps have been around for hundreds of years. The original use for a tarp was on the high seas. Sailors used to cover sheets of canvas in tar to protect goods from salt spray and water damage during transit. Over the years, the tarp has had several various uses, but usually remained as a way to keep dirt, water, and other contaminates off something, whether it was furniture, people, dirt, or any other number of things. Over the years, different materials have been used to make the tarp. Tarps have been made from nylon, canvas, cotton, plastic, polyester, and even metal. Throughout history, the tarp has had its ups and downs. Here are some highlights from the tarp’s history from its earliest days until now. 1400-1600 The tarp was used mainly at sea as a way to protect sailors and the items they transported across the seas. The original name for the tarp was the “tarpaulin.” This name came from combining the two words “tar” and “pall.” The pall was the fabric used by the sailors as a trailer cover. 1600-1900 The tarp moved inland. Many people used tarps for protecting items during travel, such as for covering wagons during moves. During the 1700s, the tarp became used for land travel as a tent covering. The waterproof surface of the tarp helped keep travelers and soldiers warm. 1900-Present During the industrial revolution, the tarp received major changes. The tarp was made from a variety of materials, such as plastics, polyester, rubber, and a variety of other materials. People now used the tarp for nearly anything, from covering the floor to prevent paint splatters to keeping leaks off a roof until the rain stopped. Today, people use the tarp for a variety of uses, including camping, construction, transportation, and protection.  

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    For your next project, consider including LED linear lighting. It provides enough light to illuminate any living space and is also great for improving interior design, making your room more attractive. LED linear lights are the future of commercial and residential lighting. The explosive growth of the global LED lighting industry is proof of this. Here are some other reasons to switch to linear lighting Linear LED bulbs : USES If you work from home, you'll benefit from 3 linear lighting technology LED bulbs. It makes your work setup more comfortable, while maintaining a modern aesthetic. It brightens up the dark corners of your home and makes it more pleasant to live in. Project customization LED Tri-Proof Lamp Linear Lights offer a wide variety of color temperatures. You can use them to highlight the different elements of your interior design and create a mood. You will get a better view with these lights. The market offers various solutions, so it is not difficult to find the right one. Linear lighting Linear LED System is also excellent for more customized installations. With LED strips or aluminum profiles, you can make unique patterns and designs. This is what makes the entire space look unique. Try some linear lighting designs that scream 2021 to improve the look of your room this year. efficiency A major benefit of LED Bulbs on High Ceilings linear lighting is the High level of energy efficiency. You'll get the same amount of light output as you get from fluorescent lighting with linear lighting, however, you'll use much less energy and spend less. You can count on LED lights to last longer than fluorescent or incandescent lights. Investing in it gives you more value for money. Buy from experienced and reliable manufacturers to get the most out of your LED linear lights. Linear LED vs. Linear Fluorescent: Pros and Cons Most reputable lighting industry manufacturers use LED tubes linear lamps. The range is versatile, from value line to high production. But there are advantages to linear fluorescent lighting as well. Here are the breakdowns between the pros and cons of each type of lighting: Linear LED Pros As mentioned earlier, LED lighting is more energy efficient than other lighting. The lamp lasts about 50,000 hours, and loses 30% of its output after a decade. Some have a shorter shelf life, but in general they all last longer than their fluorescent counterparts. LED Panel Bulbs linear lighting does not use any mercury, making it an environmentally friendly option. Most LED manufacturers offer strong product warranties, giving you peace of mind. Linear LED Wall Mounted Bulbs downsides The main disadvantage of using LED linear lights is the price. However, the cost is more reasonable now than in the past. LED linear lights have a myriad of options at different prices, so do some research to avoid feeling overwhelmed. Linear fluorescent pros If you are looking for a less expensive product, linear fluorescent is best. Its initial cost is lower than its LED tubes counterpart. It is also easy to install and can last more than 20,000 hours. Google Offers Some linear flutes (combined with right-hand ballast) can last longer than that. In some cases, it can last more than 90,000 hours. Linear fluorescent cons Mercury is the primary disadvantage of using these products. It is not environmentally friendly and also provides lower energy efficiency. Technological improvements mean that a less toxic metal is used, however, without a certain amount it will not work. Use linear lights in your project If you're considering using linear lights, but don't know where to start, we can help you connect with lighting professionals to help put you on the right track to creating a high-impact lighting design.  

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    Injection molding is amanufacturing process for producing parts by injecting material into a mold. Injection molding can be performed with a host of materials, including metals, (for which the process is called diecasting), glasses, elastomers, confections, and most commonlythermoplastic and thermosetting polymers. Family Moldie Company works with customers in a wide range of industries to bring their unique and challenging designs to life! Family Moldie Company is the plastic household products mold manufacturer and supplier in China, who can provide OEM service of Plastic Electromobile Mold, following is the mold information for your kindly reference: Mold ApplicationPlastic Electromobile MoldModel Number Design softwareUG PROE CADMolding baseLKM.HASCO.DME Plastic materialABS/PP/PS/PE/PMMAMold materialP20/718/738/S136 Molding CavitySinge /Multi CavitiesRunner systemHot /Cold Runner Molding PriceUSD 1000-30000Min.Order Qty1 Set/1000 Pieces Delivery Time45 Days-60 DaysDelivery PortNingbo/Shanghai Mold CertificationISO9001:2008Molding life300000+ shots Advantage: 1. Competitive price. 2. Continuance service and support. 3. Diversified rich experienced skilled workers. 4. Custom R&D program coordination. 5. Application expertise. 6. Quality, reliability and long product life. 7. Mature, perfect and excellence, but simple design. 1.QuoteAccording to sample, drawing and specific requirement. ↓ 2.DiscussionMold material, cavity number, price, runner, payment, etc. ↓ 3.S/C SignatureApproval for all the items ↓ 4. AdvancePay 50% by T/T ↓ 5.Product Design CheckingWe check the product design. If some position is not perfect, or cannot be done on the mold, we will send customer the report. ↓ 6.Mold DesignWe make mold design on the basis of confirmed product design, and send to customer for confirmation. ↓ 7.Mold ToolingWe start to make mold after mold design confirmed ↓ 8.Mold ProcessingSend report to customer once each week ↓ 9.Mold TestingSend trial samples and try-out report to customer for confirmation ↓ 10.Mold ModificationAccording to customer’s feedback ↓ 11.Balance settlement50% by T/T after the customer approved the trial sample and mold quality. ↓ 12.DeliveryDelivery by sea or air. The forwarder can be designated by your side. Our Services 1. Product Design, Structural Optimization, Process Optimization 2. Mold Making, Plastic Molding Parts, Casting Parts, Machining Part 3. Manage Project, Control The Delivery and Quality of Products 4. Arranging the Transportation, Customs Clearance and other Matters for You Product Show: Customized designs are accepted. What can we do? Do you have a big idea? If you have any idea,no matter normal or creative, please let us know, we would like to work with you to turn it into reality, from ideas to sketches, to computer design, to the solid model, to the mold, to the sample, and finally to the satisfaction of the product.A big idea,maybe a big success Do you have a sketch/drawing? If you have only a draft design, it does not matter.To transfer a draft to a computer design is one of our expertise. If you already have a computer design, it is much easier, We will assess the difficulty of making the product, suggest to modify, and ultimately achieve your satisfaction. Do you need a plastic mould? If you have a plastic product needed imitation and producing, please contact us,we will copy the product to a mold. After molding, our mold test workshop will create samples. If you need OEM, our production workshop will complete production, packaging and delivery. Do you need OEM? If you have a mold, which needed to do small or mass production, please contact us, our professional OEM production team will help you complete the small or mass production, packaging, customs declaration, transport. You give an order, we do all for you by full effort. If you need more information regarding mold, please feel free to contact us.Electric Bicycle Mold factory website:

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    Application of Moving Bed Biofilm Reactor (MBBR) This review paper present the MBBR and IFAS technology for urban river water purification including both conventional methods and new emerging technologies. The aim of this paper is to present the MBBR and IFAS technology as an alternative and successful method for treating different kinds of effluents under different condition. There are still current treatment technologies being researched and the outcomes maybe available in a while. The review also includes many relevant researches carried out at the laboratory and pilot scales. This review covers the important processes on MBBR and IFAS basic treatment process, affecting of carrier type and influent types. However, the research concluded so far are compiled herein and reported for the first time to acquire a better perspective and insight on the subject with a view of meeting the news approach. The research concluded so far are compiled herein and reported for the first time to acquire a better perspective and insight on the subject with a view of meeting the news approach. To this end, the most feasible technology could be the combination of advanced biological process (bioreactor systems) including MBBR and IFAS system. The BioCellTM media are suitable for a moving bed biofilm reactor (MBBR) system to provide a self-shedding, self-regulating growth biofilm treatment process. The media can be used for MBBR treatment alone or as an integrated fixed membrane activated sludge (IFAS) process to enhance the effective capacity of existing activated sludge systems. The BioCellTM medium used in MBBR media or IFAs is a continuous motion caused by air injection and agitator. Specific density of the media can be adjusted between 0.95-1.05 g/cm3 according to customer requirements. However, it should be considered that with the formation of biofilm on the surface of the medium, the actual density of the carrying media will increase. The main characteristic of Moving Bed Biological Reactor (MBBR) configurations is that there is no sludge recycle from a secondary clarifier. MBBR is essentially a simple, once-through process, where all of the biological activity takes place on the biomass carriers. MBBR is usually followed by a solids separation system such as a secondary clarifier or DAF, in order to separate bio-solids produced in the process from the final effluent. The main advantage of MBBR is robust and simple reduction of soluble pollutants (soluble BOD or COD, NH4 +, etc.), with minimal process complexity, utilizing a significantly smaller footprint when compared to conventional aerobic treatment methods. MBBR is typically used for either high load industrial applications or for robust simple-to-operate municipal facilities. The Integrated Fixed-film Activated Sludge (IFAS) process combines the advantages of conventional activated sludge with those of biofilm systems by combining the two technologies in a single reactor. Typically, an IFAS configuration will be similar to an activated sludge plant (utilizing all of the different process configurations such as MLE, UCT, Bardenpho, etc.), with biomass carriers introduced into carefully selected zones within the activated sludge process. This allows two distinct biological populations to  act  synergistically, with the MLSS degrading most of the organic load (BOD), and the biofilm creating a strongly nitrifying population for oxidation of the nitrogenous load (NH4+). IFAS is typically used to upgrade existing plants in order to enable extensive Nitrogen removal, or in designing new plants with significantly smaller footprints for extensive BOD and Nitrogen removal.  The diffuser is the special design for MBBR bio carrier media aeration system. The coarse-bubble design is employed to mix the suspended media evenly throughout the reactor  while  providing  the  mixing energy required to slough old biofilm from the internal surface area of the media and maintain the dissolved oxygen required  to  support the biological treatment process. Coarse bubble diffuser is made of stainless steel (SUS304 or SUS316L is optional).The  coarse bubble diffuser provides maximum aeration and mixing efficiency.The standard length of diffuser is 600 mm. A 600mm long diffuser can achieve a 1250mm air release circumference.It has a service life of over 15 years. The dissolved air flotation(DAF) system is designed to remove suspended solids(TSS), biochemical oxygen demand (BOD5), and oils and greases (O&G) from wastewater. Contaminants are removed by using a dissolved aqueous solution of water produced by injecting air into the recirculating stream of clear DAF effluent under pressure. The recycle stream is then mixed with the upcoming wasterwater in the internal contact chamber. Air bubbles and contaminants rise to the surface and form a floating bed material that is removed by a surface skimmer into the internal hopper for further processing. The initial section of dewatering drum is the Thickening Zone, where the solid-liquid separating process takes place and where the filtrate will also be discharged. The pitch of the screw and the gaps between the rings decrease at the end of dewatering drum, hence increasing its internal pressure. At the end, the End Plate further increases the pressure, so as to discharge dry sludge cake. Albe Advance Group is the leading industrial water treatment solution provider in Malaysia with decades of experience in providing quality water treatment solutions. We prioritise in providing our clients with a one-stop water treatment centre for industrial water treatment project and services. Having doubts on industrial water treatment qualities? Contact us and let our skilled professionals provide you with a consultation in water treatment program. In traditional activated sludge plants, biomass form flocks are kept suspended in wastewater and then separated from treated water in a settler; most biomass is re-circulated to the biological tanks, the excess is extracted and sent to sludge treatment. Luigi Falletti, University of Padova This technique is the most widespread and well known in the world to treat biodegradable municipal and industrial wastewater (including paper mill wastewater); but it has also disadvantages: it requires large tanks, and pollutant removal efficiency is strongly affected by sludge settleability. In moving bed biofilm reactors (MBBR) biomass grows as biofilm on plastic carriers that move freely into wastewater; tanks are similar to activated sludge reactors, and they have screens or sieves to avoid carriers’ loss; aerated reactors are mixed by aeration itself, while anoxic and anaerobic reactors are mixed mechanically. MBBR can be classified into two categories: pure biofilm reactors: biomass grows only on carriers without suspended sludge and without sludge recirculation; hybrid reactors: in the same tank biomass grows both as biofilm on carriers and as suspended sludge; part of sludge is re-circulated. MBBR have several advantages if compared to traditional activated sludge tanks and to fixed biofilm reactors (trickling filters, submerged biofilters): -biofilm has high specific activity, therefore high pollutant removal efficiencies can be achieved with smaller tanks than the ones required by activated sludge; -in plants with a series of MBBR a specialized biomass grows in each tank; –risk of clogging with MBBR is much lower than with fixed biofilm reactors, no backwashing is required since biofilm in excess is detached from carriers by reactor turbulence itself, and can be separated from treated water by settling or flotation; -this technology is very flexible in plant conduction: in pure biofilm reactors, the filling degree can be varied according to process requirements, in hybrid reactors also sludge recirculation rate can be varied. Several kinds of carriers are used in MBBR: they can be classified according to material, shape, porosity, dimensions, specific surface. Among these characteristics, specific surface is particularly important: it represents the surface which is available for biofilm growth pr. cubic meter carriers. For each kind of carrier, part of specific surface is protected and the remaining part is external; biofilm grows almost only on protected surface, because external surface is exposed to collisions among carriers and against reactor walls; so the effective specific surface is only a protected one. First biofilm growth on carriers requires some weeks; bacteria produce surfactant substances, so some scum can be observed during the first days in plant starting [1, 2, 3, 4]. Carriers can be introduced in MBBR in variable amounts: filling degree is the ratio between the carriers’ apparent volume and the tank volume, and it can vary from zero to a maximum value that depends on the carriers’ characteristics. With higher filling degree, total biofilm surface and pollutant removal efficiency increase, but higher mixing energy is required. The most widespread carriers are made of polyethylene or polypropylene, their density is about 0.95, and usual filling degrees’ range is 30–60%; the characteristics of some kinds of carriers produced by AnoxKaldnesTM Company are listed in table 1. Possible configurations Mbbr sewage treatment can be applied for wastewater treatment in several plant configurations: 1. pure MBBR biofilm before an activated sludge plant: this solution is common for concentrated wastewater treatment; 2.upgrading of overloaded activated sludge plants by conversion into hybrid MBBR; 3.tertiary biological treatment by pure biofilm MBBR after an activated sludge plant; 4.complete biological treatment by series of MBBR: pre-denitrification, oxidation, nitrification, post-denitrification. MBBR have been and are applied to treat municipal wastewater [5, 6, 7, 8, 9] and industrial wastewater including paper mills [10, 11, 12], winery [13] and dairy [14]. This paper deals with the results of some European full-scale plants with MBBR for paper mill wastewater treatment. Industry nr. 1 produces about 18.000 m3d-1 wastewater with 2.500–3.500 mg/L COD. The wastewater treatment plant (picture 1) is made of a coarse screen, a primary settler, a fine screen, a cooling system, dosage of nutrients (nitrogen and phosphorus salts), a biological section and a final clarifloculation. The biological section has a first aerated pure biofilm MBBR filter media with 2.500 m3 volume filled with 40% NatrixTM – O carriers, an activated sludge oxidation tank with 7.500 m3 volume and sludge concentration 4-6 kgSSTm-3, and a secondary settler. The plant must remove at least 90% of COD, 99% of BOD5; maximum pollutant concentrations in final effluent are: TSS < 50 mg/L, tot-N < 4.7 mg/L, P < 0.3 mg/L. On average basis, the plant has treated an effective organic load of 59.000 kgCODd-1, the first MBBR has removed 51% of COD and the following activated sludge oxidation tank has removed 75% of remaining COD; the whole plant has removed 90% COD and has always respected emission limits. Industry nr. 2 produces about 18.000 m3d-1 wastewater with 2.000-2.500 mg/L COD. The wastewater treatment plant (picture 2) is made of a cooling system, dosage of nutrients (nitrogen and phosphorus salts), pH correction and a biological section. The biological section is made of two serial aerated pure biofilm MBBR with 1.900 m3 volume each filled with 20% NatrixTM – O carriers, an activated sludge oxidation tank with 10.000 m3 volume and sludge concentration 2-5 kgSSTm-3, and a final settler. The plant must remove at least 70% COD, 50% total nitrogen and 50% total phosphorus; moreover, maximum TSS concentration in final effluent is 30 mg/L. On average basis, the plant has treated an effective organic load of 38.000 kgCODd-1, the two MBBR have removed 35% COD, the whole plant has removed 70% COD and has always respected emission limits. Industry nr. 3 produces 2.800 m3d-1 wastewater 800-1.300 mg/L COD. The wastewater treatment plant (picture 3) is made of an equalization tank with 600 m3 volume, a primary settler (with fiber recovery), dosage of nutrients (nitrogen and phosphorus salts) and a biological section. The biological section is made of a pure biofilm aerated MBBR with 500 m3 volume filled with 68% AnoxKaldnesTM – K1 carriers, and a secondary settler with polyelectrolyte dosage. Maximum pollutant concentrations in final effluent are: TSS < 35 mg/L, COD < 160 mg/L, BOD5< 40 mg/L. On average basis, the biological section has treated an effective organic load of 2.660 kgCODd-1, and has removed 90% COD; the final effluent has always respected emission limits.  

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    How Three Revolutionary Fabrics Are Greening the Industry If the holiday sales are tempting you to refresh your wardrobe, consider the environmental footprint of buying a new jacket and throwing away your old one. Today, about 80 billion new pieces of clothing are made each year—400 percent more than 20 years ago, while the world’s population only grew about 30 percent. That growth has a huge environmental cost. The Danish Fashion Institute named fashion “one of the most resource-intensive industries in the world, both in terms of natural resources and human resources.” Designer Eileen Fisher has called it “the second largest polluter in the world… second only to the oil industry,” and while that fact has been disputed, a 2010 research paper found that the industry is responsible for almost 10 percent of global greenhouse gas emissions. Moreover, once clothes have been made and worn for a short while, they’re thrown away. A new report from the Ellen MacArthur Foundation found that cumulatively around the world a truckload of clothes gets dumped every second. The average American tosses about 82 pounds of textiles a year, much of which ends up in landfills or incinerated. Of the clothing that reaches second-hand stores like Goodwill—only 15 percent of all discards—some is recycled into shoddy (filling for cheap furniture) or upcycled into things like denim insulation, but most of it is shipped to poorer countries. However, they too have limits—African countries including South Africa and Nigeria recently banned Western castoffs, which have overwhelmed their markets, causing the decline of their local fashion business. Replacing Old stock fabrics With New Biopolymers Two types of textiles—petroleum-made polyester and field-grown cotton, often woven together—have been the fashion industry’s darlings for decades. “Much of [what we wear now] is a blend of PET, a petroleum-based fiber, and cotton fiber,” says Ramani Narayan, a professor in the Department of Chemical Engineering and Materials Science at Michigan State University. But these hipora fabric have their issues. Cotton, which makes over 30 percent of our clothes’ yarns, is a natural material, but it’s a thirsty crop that siphons 3 percent of the fresh water, and accounts for almost 20 percent of pesticides and 25 percent of the insecticides used in agriculture worldwide, before it’s even picked. Processing cotton—knitting, weaving, and dyeing—also takes water and energy, yielding more pollution. The production of polyester, the demand for which has doubled in the last 15 years, is an energy intensive process that requires a lot of oil and generates harmful emissions, including volatile organic compounds, particulate matter, and acid gases, like hydrogen chloride, all of which contribute to respiratory disease. “Adding PET to a textile gives you better performance—it makes taffeta fabrics more moisture-resistant and gives them more washability,” says Narayan, but these textiles don’t break down naturally, and instead fill up our landfills and oceans. Polyester threads discarded from washing machines have recently been found in fish, including some species we eat. Unless PET threads are decoupled from cotton and recycled, they don’t decompose, but separating fibers is very difficult. That’s where biopolymers come in.  Biopolymers are macromolecules—long chains of smaller molecular units strung together.  These basic units can be amino acids, nucleotides, and monosaccharaides. The most common biopolymer is cellulose, which makes up one third of all plant material on earth. Cotton is 90 percent cellulose, but there are other, less polluting alternatives. Biopolymers can be grown or harvested from other plants like kelp or from living organisms like bacteria or yeast, which produce biopolymers as part of their lifecycle. The resulting fibers can be woven into a variety of textiles akin to polyester, leather, or a cellulose-like yarn. To a certain extent, these materials can sequester carbon from the atmosphere, acting as wearable carbon sinks. And when they’re thrown away, these biopolymers will decompose. Just as a cotton t-shirt will break down in a compost heap after a few years, so will any biopolymer-based textile. “Obviously it’s better to use plants and biomass to make products,” says Narayan, “because then the plants fix the carbon and when you make a product from that you have removed carbon dioxide from the environment.” Using biopolymers in clothing can reduce energy and freshwater use and may help mitigate climate change resources. Plus, as the following examples show, some biopolymers can take the creativity of fashion design process in a whole new direction. Seining Sweaters from the Sea AlgiKnit uses kelp, a type of seaweed, to produce a biopolymer called alginate, which is then used for textile production. Kelp grows all over the world, forming offshore kelp forests. Some kelp species grow quicker than the fastest-growing terrestrial plant, bamboo, and are inexpensive to farm. As it sprouts, kelp cleans water too—absorbing phosphorous, nitrogen, and five times more carbon dioxide than land plants—so farming it near seaside cities can improve polluted local waters. Like any plant, kelp absorbs carbon to grow, so when used in durable materials, it is also a carbon sink. AlgiKnit extracts alginate from kelp by adding certain salts to the seaweed base. After the so-called “salt bath” pulls the alginate from the kelp’s cell walls, the biopolymer is extracted from the seaweed residue, dried into a powder and fused into a yarn that can be turned into a variety of stretch fabric types. “The process is similar to that of synthetic materials, where one long continuous strand is produced,” says Tessa Callaghan, the co-founder of AlgiKnit. “The filament can be plied and twisted to increase strength, or cut into short fibers for other purposes.” AlgiKnit won National Geographic’s Chasing Genius Competition for developing this technology. The team’s big challenge has been to get their end fiber to be strong and flexible enough for use on an industrial knitting machine. It took a lot of experimentation to ensure compatibility between yarns and machines, but one of the team’s goals is to be able to use the yarn in the existing fiber and textile infrastructure, to streamline the new material’s acceptance, Callaghan says. Modern Meadow’s yeast-produced collagen is another biopolymer that is about to make its runway debut in a form of a leather product named Zoa. The New Jersey-based company designs DNA that can yield collagen, the protein that makes up leather. These specially constructed DNA strands are inserted into the yeast cells. As the yeast cells grow and multiply, they produce collagen and other proteins essential in forming leather, which then cluster together to make a triple-helix collagen molecule. The resulting molecules form bundles that are “cooked” in Modern Meadow’s “secret sauce,” resulting in a leather-like material. “We design DNA that can make collagen, the main building block of leather, then we purify it, and then use an assembly process to turn it into leather,” says Susan Schofer, vice president of business development at Modern Meadow. Compared to traditional leather industries, Zoa’s production has a lower environmental impact and more fashion design opportunities. To turn a piece of animal hide into bags, shoes, or pants, it must undergo chemical and physical treatments to remove fats, hair, and other impurities. That processing is ecologically and medically fraught—most leather tanning is done in countries with few or unenforced environmental laws because the effluent from the process contains fish-killing sulfides, carcinogenic chromium, and chlorinated phenols that are linked to bladder and nasal cancers in tannery workers. Using yeast to grow collagen eliminates the animal part of the equation—including slaughter and subsequent hide processing. It yields higher quality materials—perfectly shaped hides without branding marks or scars, and yields very large spans of leather, much bigger than a cow’s body. It also offers nearly endless creative design ideas. The new collagen can be sprayed on top of another minimatt fabric to create never-before-seen leather fashions, like the t-shirt that is currently on display at the Museum of Modern Art in New York as part of its Items: Is Fashion Modern? exhibit. This material can also be embossed or textured in ways that cow or pig leather just can’t. Modern Meadow will be introducing Zoa to market in 2018. The production facilities are already available from related industries such as biofuels. “We use 200,000 or 500,000-liter fermentation tanks [for the yeast],” says Schofer, “So the infrastructure already exists around the globe to take this from lab to commercial levels.”  

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    Cincozeからの工業パネルPCは、挑戦的な環境を目標とします 感覚インダストリアル・パネルPC範囲は、高性能産業パネル馬PCに入場レベルの我々自身のブランドです。感覚範囲は、人間機械インターフェース(HMI)、SCADA、プロセス制御、工場自動化、ビルディングコントロールとホームオートメーションアプリケーションで使われる手頃な価格で信頼できる品質パネル・コンピュータを提供します。 我々の全産業パネルPC範囲は、タッチスクリーン機能とIP 65定格のフロントパネルで来ます。彼らは、ハードディスクドライブ、またはシステムのインストールとデータストレージをオペレーティング用のソリッドステートドライブでプリフィットされます。我々は事前にソフトウェアをインストールすることができますし、顧客の要件に合わせて当社の工業用パネルindustrial panel pcのいずれかをカスタマイズします。 ロジック・サプライを通してアメリカ合衆国で利用できるCincozeからのこの産業用パネルPCは、インテルベイトレイル・プロセッサーによって供給されて、3つのUSB 2.0、1つのUSB 3.0、2つのRS 232 / 422 / 485 COMポート、1つのVGA、1つのDisplayPort、Line Out、Mic - inと8ビットDIOの標準I / Oを特徴とします。 ロジック供給を通してアメリカ合衆国で利用可能であるCincozeからのTM 400 TouchScreenシンクライアント工業PCは、製造、工業的な支配、輸送とキオスクアプリケーションのそれらを含む挑戦的で、振動する傾向と極端な温度環境で使用するために設計されます。標準I / Oは、3つのUSB 2.0、1 USB 3.0、2つのRS 232 / 422 / 485 COMポート、1つのVGA、1つのDisplayPort、Line Out、Mic - inと8ビットdioを含みます。システムは、電源の15 Wだけを描いているインテルベイトレイルプロセッサによって動かされて、2.5“HDDまたはCFastメモリで装備されることができます。加えて、PCは、- 4度Fから158度Fの動作温度範囲とIP 65定格のフロントベゼルを特徴とします。 いずれかのタッチパネルPCまたはディスプレイ、我々は製造や生産の自動化のためのシステムを提供し、HMIや制御ユニットだけでなく、POSやキオスクアプリケーションです。一方で、我々は制御キャビネット、19“-ラックまたはコントロールパネルのための堅牢なパネルPCとディスプレイを提供しています。IP 67と拡張温度範囲と単純なパネル・アセンブリまでの侵入保護は、これらのモデルに応募します。これらのモデルは、IP 65 / IP 67 / IP 69 K、拡張温度範囲と簡単なパネル・マウントまでスプラッシュ水保護を特徴とします。私たちのパネルPCは、X 86のWindowsバージョンと同様にRISCベースのパネルindustrial touch panel pc Andriodで利用可能です。一方、我々はまた、主にVESAの実装に適している私たちの範囲で、エレガントな、ファンレスのすべての1つのPCソリューションだけでなく、マッチングタッチディスプレイがあります。統合されたカメラやスピーカーだけでなく、RFIDの読者とBluetoothは1つのデバイス内のすべての包括的な機器のためのいくつかの例です。 Aaeonは、堅牢なパネルPC、拡張可能な産業用コンピュータ、フルHDインフォテインメントディスプレイ、頑丈なタブレット、埋め込まれたコンピュータや関連アクセサリーなどのインテリジェントシステム製品を提供する上で優れた成果を持っている。これらの製品は、デジタル署名、交通、産業オートメーション、ヘルスケア、ホスピタリティ、港/海兵隊、軍/政府とエネルギーセクターのすべての面で今日適用することができます。Aaeonは、スリムな組み込みコンピュータの範囲と高速なカスタマイズサービスを提供しています。Tier - 1顧客から最高の信頼を得たので、AaeonはDesign to to Concrete Manufacturingで始まって、大量生産で大きな顧客を援助することができるエンドツーエンドのDMSサービスにこのサービスを進めました。優れた製品のパフォーマンスを確保する当社のシステム製品の品質保証は、すべての分野で我々の成長グローバル顧客ベースの鍵となっている。 TNSは、AxiomtekとMoxaによって製造される我々の工業的な埋め込まれたコンピュータのためにカスタマイズされた強化を提供します。顧客は、プロセッサ、オペレーティングシステム、ストレージ容量、デバイスインターフェイスなどのさまざまな組み合わせから選択することができます。製品開発サイクルを通しての厳しい品質テストは、これらの製品が厳しい環境で優れたパフォーマンスをもたらすことを確実とします。お客様のアプリケーションに最適な試合に無料技術相談のための連絡先TNS ますます多くの企業は、エッジデータを使用して、ローカルデータ処理の利点を活用しています。私達はこのためのプロダクトを提供する、その最新のものはscalance lpe(ローカル処理エンジン)、あなたの考えに開いている柔軟なローカル処理プラットホームである。 Scalance LPEは、強力で強力なCPUを備えた小型で堅牢なローカル処理エンジンです。それは柔軟に使用可能です-例えば、あなたの植物の効率を大幅に高めることができるエッジアプリケーションのために。 Scalance LPEはプロセスで直接データを収集して、それを前処理して、他のシステムに利用可能にします。可能なアプリケーションは、通信ネットワークにおける予測維持または異常検出を目的として、複数のデバイスの状態監視のようなものである。その強力なCPUのおかげで、処理エンジンは同時にいくつかのアプリケーションを処理します。そのLinuxベースのオペレーティングシステムを使用すると、独自の自作アプリを実装することができますだけでなく、アプリケーションでは、市場で利用可能な(例えばDockerのような)。 結果駆動された世界で成功することは、ますます高速に動作することを意味し、ますますデータに接続されている。お客様を助けるために、エマーソンは、決定的な工業ディスプレイの経験を作成しています。我々のRXIパネルPCポートフォリオは、堅牢な、パフォーマンスによって駆動されるコンピューティング装置を提供します。 あなたのニーズにあなたの製品をカスタマイズするためにモジュール性と柔軟性を結合して、RXIパネル19 industrial panel pcポートフォリオも、デュアルコア1.0 GHzプロセッサーまたは4 GBまたは8 GBの利用可能なDDR 3 RAMでQuad Core 1.2 GHzプロセッサーのおかげでパフォーマンスを詰め込みます。Windows 10 IOT Enterprise LTSB Os Standardで、RXI -パネルPCは、あなたのソフトウェアニーズを満たす準備ができています。デザイン、耐久性とパワーの超スリムパッケージにパックの組み合わせは、アプリケーションの広い範囲に最適です。 Tegar工業オールインワンコンピュータは、完全に同封されて、fanlessな冷却システムでタッチスクリーン・スクリーンPCを堅牢にしました。これらのユニットは、スイングマウント、机のスタンドで使用するために設計されているおかげで、さまざまな環境に配置することができますスイングアーム、または制御コンソールのインストール用。各々のオールインワンコンピュータは、パフォーマンスを強化するために、頑丈な工業的な構成要素とfanlessな冷却システムを利用します。 Tegarの工業的なオールインワンコンピュータの頑丈なデザインは、彼らに湿気、熱、ちりと寒さのような難しい環境要因で厳しい状況で確実に実行するのを可能にします。操作のニーズに応じて、いずれかの抵抗または投影容量タッチスクリーンのオプションから選択することができます。 Beckhoffは、PCベースのオートメーションのパイオニアの一つです:最初のPC制御システムは、1986年として早く届けられました。 Beckhoff製品の哲学の重要な特徴は、高度な、高性能コンポーネントとプロセッサの使用です。その結果、Beckhoff工業的なPCは、テクノロジー市場の最新の製品を含む傾向があります。すべての新技術は、産業か消費者のセグメントからであるかどうかにかかわらず、Beckhoffによってその潜在的産業アプリケーションのために適応されて、適切で統合されて最適化されてテストされます。顕著な例は、CP 2 xxxとCP 3 xxx装置シリーズの現代のマルチタッチ技術の統合です。現代のタッチ技術は2007年以来消費者市場で増加しています、そして、Beckhoffは一貫して高度で直観的な機械とシステム操作オプションを提供するために2011年以降そのパネルfanless industrial pcでそれを利用していました。beckhoffは,対応する基本技術の集積化により,使用可能性,干渉抵抗,機械的安定性,外形寸法の観点から,工業用に適した静電容量タッチ技術の機能原理を作った。CP 2 XXXとCP 3 xxx製品家族は、最新の消費者技術が産業環境でうまく使われることができる方法を説得的に示します。 先進的な工業用PC技術のおかげで、さまざまなフォームファクタ、アクセサリーコンポーネントとtwincatオートメーションソフトウェアのコーディネートされたポートフォリオによって補われて、Beckhoff工業PCは、機械、プロセスとロジスティックスシステムの制御、プラント構成要素のネットワークを含むオートメーションタスクの広い範囲の中心にあります。データ収集と画像処理古典的な制御タスクのために、PCベースの制御技術は優れたスケーラビリティと柔軟性を提供して、したがって、ますますハードウェアPLCの代わりに使用されています。 ファインスケーリングは、インテルの原子を介して別のプロセッサレベルを介して保証されてインテル™ インテルのXeonへのi 7 .インテルAtomプロセッサは、プロセッサの低消費電力により、非常に小さく、ファンレスコントローラを構築することができ、低価格域で見出される。インテルのコアの現状™-私はプロセッサは、過酷な産業環境で使用するために利用可能な2、4、6または8コアとマルチコア技術を作る。 長年の経験に加えて、顧客ニーズに対する焦点は、広範囲なBeckhoff工業PC製品ポートフォリオの開発を進めました。最適に調整された制御コンピュータは、デバイスとオプションの大きな選択からあらゆるアプリケーションのために見つかることができます。デバイスタイプに従い、PCハウジングはATX PCにバスカプラー・フォーマットから異なります。そして、ビルトイン・プロセッサーとマザーボードの長期の入手可能性に加えて、Beckhoffもソフトウェアと異なるドライブを含むすべての統合された構成要素の完全なコミットメントを提供します。カスタマイズされたソリューションは、それぞれのタスクに最適な適応のために実現することができます。 魅力的に設計された制御パネルはBeckhoff工業embedded industrial pcシリーズを完全に補完する機械またはシステムのフロントエンドとして、彼らは一種の視覚の呼び出しカードとして機能します。ディスプレイ/操作ユニットと制御コンピュータの空間的分離はユーザに最大限の柔軟性を提供する。魅力的なデザイン、堅牢性と産業応用の適合性は、コントロールパネルシリーズの開発の重要な基準であった。 コントロールパネルのハウジングは、高品質で、固体のアルミニウムで作られ、一般的に産業環境で必要な保護クラスIP 65に準拠しています。電子部品、ディスプレイ、タッチスクリーン、フロントラミネートの細心の開発と統合は、操作上のコントロールパネルの高可用性と信頼性を保証します。  

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    Numerical Study of Aeroacoustic Sound on Performance of Bladeless Fan Aeroacoustic performance of fans is essential due to their widespread application. Therefore, the original aim of this paper is to evaluate the generated noise owing to different geometric parameters. In current study, effect of five geometric parameters was investigated on well performance of a Bladeless fan. Airflow through this fan was analyzed simulating a Bladeless fan within a 2 m×2 m×4 m room. Analysis of the flow field inside the fan and evaluating its performance were obtained by solving conservations of mass and momentum equations for aerodynamic investigations and FW-H noise equations for aeroacoustic analysis. In order to design table bladeless fan Eppler 473 airfoil profile was used as the cross section of this fan. Five distinct parameters, namely height of cross section of the fan, outlet angle of the flow relative to the fan axis, thickness of airflow outlet slit, hydraulic diameter and aspect ratio for circular and quadratic cross sections were considered. Validating acoustic code results, we compared numerical solution of FW-H noise equations for NACA0012 with experimental results. FW-H model was selected to predict the noise generated by the Bladeless fan as the numerical results indicated a good agreement with experimental ones for NACA0012. To validate 3-D numerical results, the experimental results of a round jet showed good agreement with those simulation data. In order to indicate the effect of each mentioned parameter on the fan performance, SPL and OASPL diagrams were illustrated. Nowadays, the axial and radial fans are employed for various applications, such as cooling systems, air conditioning, ventilation of underground spaces, etc. The aeroacoustic performance of fans have been improved by increasing advancements in the computational fluid dynamics (CFD) and economic growth, then different types of fans with various applications and higher efficiency is offered. In 2009, a new fan was invented that its appearance and performance was different from conventional fans. The main differences of this fan with respect to conventional fans (axial and radial fans) are the multiplying intake air flow and lack of observable impeller [1]. This fan namely Bladeless/Air Multiplier fan was named on the basis of the two mentioned features. Until now, this fan is manufactured for domestic applications by diameter of 30 cm. There are two typical fans widely used: axial and radial types, however Bladeless fans are completely distinct from those fans in mechanism aspect. Bladeless fan is similar to centrifugal fans in terms of radial impellers for intake air and also it is similar to axial fans in terms of preparing higher rate of outlet airflow. Although studies about wall and table bladeless fan are rare in the literature, numerous experimental and numerical studies have been performed on the axial and centrifugal fans. Lin, et al [2], designed a Forward–Curved (FC) centrifugal fan by numerical simulation and experimental tests. They selected NACA 0012 airfoil profile for its blade and indicated that this fan produces a higher maximum flow rate and static efficiency when the blade inlet angle is 16.5º. The influence of enlarged impeller on performance of a centrifugal fan was experimentally examined by Chunxi, et al [3]. By comparison of obtained results, they observed that flow rate, total pressure rise, shaft power and sound pressure level increased while the efficiency of fan decreased for larger blades. Govardhan, et al [4], investigated the flow field in a cross flow fan by three-dimensional simulation via the commercial software code, CFX. They simulated three impeller geometries for different radius ratio and blade angles, and then they compared their efficiency with each other. Sarraf, et al [5], experimentally studied axial fans performance for two identical fans but with different impeller thickness. They indicated that the overall performance of these two fans is same, but the fan with thicker blades contained higher rate of pressure loss by the means of 8%. Also the efficiency of the fan with thinner blades was 3% higher than the fan with thicker blade. Mohaideen [6] improved an axial fan blade by using the finite element method (FEM) and reduced 18.5% of the blade weight after optimizing on the blade thickness via stress analysis by ANSYS commercial software. There are a lot of studies on the generated noise by various airfoils that is carried out by experimental and/or numerical approaches. Chong, et al [7], measured the generated noise by a 2-D NACA 0012 airfoil at the angles of attack 0º, 1.4º and 4.2º, in a wind tunnel. They performed their experiments for some Reynolds numbers between 1×105 and 6×105. The experimental results indicated that the pressure gradient was raised on the airfoil pressure surface by increasing of attack angle, so the noise can be produced by this phenomenon. Devenport, et al [8], carried out experimental tests on the noise propagation of NACA 0012, NACA 0015 and S831 airfoil. The obtained results indicated that the airfoils with more thickness made lower noise and revealed the different angles of attack had little influence on the sound production for NACA 0012 and NACA 0015 airfoil. Casper, et al [9], solved the equations of FW-H and developed new equations. They computed the produced noise by a NACA 0012 airfoil in a low Mach number flow. The analytical results and experimental data for NACA 0012 airfoil were in good agreement. So far, many experimental and numerical studies have been performed on the generated sound by axial and centrifugal fans. Many researchers have used the FW-H equations to predict the sound radiation of fan by numerical simulation. Ballesteros-Tajadura, et al [10], measured the noise of a centrifugal fan via FW-H noise model using the CFD code, FLUENT. By comparing numerical and experimental noise results, they showed the FW-H model was able to predict the tonal noise with reasonable accuracy. Solving FW-H equations, Moon, et al [11] and Cho, et al [12] calculated the amount of radiated sound from an axial fan and a cross flow fan, respectively. Younsi, et al [13], used numerical simulation to predict the noise level in a HVAC forward centrifugal fan. By comparing numerical and experimental data, they showed the good agreement between simulation and the experimental data. In some papers, researchers have studied the source of generating noise in different fans by using the computational aeroacoustics (CAA) [14]. Khelladi, et al [15], calculated the noise of a high rotational speed centrifugal fan via FW-H analogy and solving the Reynolds Averaged Navier-Stokes (RANS) equations. They compared the numerical and experimental data and also evaluated the aerodynamic performance of fan. In 2009, Sorguven, et al [16], studied aerodynamic and aeroacoustic performance of two radial fans. Moreover in their study, LES turbulence modeling and FW-H noise modeling were employed. They showed a satisfied agreement of experimental and numerical results and reported FW-H model as a reasonable model for evaluating aeroacoustic performance of fans. Although Bladeless fan is invented in 2009, but until now aeroacoustic performance of this fan has not been studied numerically or experimentally for different conditions. This fan is designed for home applications by diameter of 30 cm and the only available geometric information is mentioned in patent documentation [1]. In the present study, the effect of five geometric parameters is investigated on performance of a Bladeless fan by diameter 30 cm. The studied parameters are height of fan cross section, outlet angle of the flow relative to the fan axis, thickness of airflow outlet slit, hydraulic diameter and aspect ratio for circular and quadratic cross sections. The unsteady conservation of mass and momentum equations are solved to simulate three-dimensional incompressible flow in the Bladeless fan. The Ffowcs Williams and Hawkings (FW-H) formulation is solved to calculate the noise propagation of smart bladeless fan. Firstly, the generated noise of a NACA 0012 airfoil is computed to validate aeroacoustic results by experimental data [17]. The obtained numerical results and the experimental data are in the reasonable agreement, so the FW-H model is employed to measure the tonal noise of Bladeless fan. To validate 3-D numerical simulations, the experimental results of a round jet [18] are compared with numerical simulation results. Since there is not any experimental data about Bladeless fans, round jet is selected due to much similarity. The turbulence in the Bladeless fan is simulated by standard k−ε turbulence model. In order to design cross section of Bladeless fan, Eppler 473 airfoil is chosen among standard airfoils. Eppler 473 airfoil is selected because it is an appropriate airfoil for low Reynolds numbers and high similarity of this airfoil profile to original cross section (designed by inventor) [1]. The volume flow rate is calculated at a distance up to 3 times of nozzle diameter in front of the fan (around 1000 mm) [1]. The numerical results for Bladeless fan show that the investigated parameters in this study are very important to improve the fan performance. Thus these parameters should be considered to design a high performance Bladeless fan. Mechanism of Bladeless Fan This fan is produced for domestic applications and its diameter is 30 cm. The mechanism of inlet and outlet airflow from this fan is shown in Fig. 1. At the first stage, the airflow is sucked into the fan through a rotating DC brushless motor and a mixed flow impeller. The intake air is accelerated by passing through an annular aperture which the cross section of this fan is similar to an airfoil profile. Then air is pushed out from a ring shape region, so the air velocity is increased in this region. A considerable pressure difference is generated between both sides of the fan and the discharged air can be described by Bernoulli’s principle. This pressure difference draws the behind and surrounding air toward front of fan. Therefore, a smart tower bladeless fan amplifies the intake air by drawing the air behind and around the fan. Thereby the inventor of this fan claims that [1] this fan multiplies intake air at about 15 times at distance 3D front of fan (around 1000-1200 mm) [1, 19]. All of described stages are shown in Fig.  

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    Eating plenty of vegetables may be one of the simplest ways to improve health and well-being. All vegetables contain healthful vitamins, minerals, and dietary fiber — but some stand out for their exceptional benefits. Specific vegetables may offer more health advantages to certain people, depending on their diets, overall health, and nutritional needs. In this article, we look at 15 of the most healthful vegetables and suggest ways to enjoy them as part of a balanced diet. 1. Spinach Spinach is a leafy green vegetable and a great source of calcium, vitamins, iron, and antioxidants. Due to its iron and calcium content, spinach is a great addition to any meat- or dairy-free diet. One cup of raw spinach is mostly made up of water and contains only 7 caloriesTrusted Source. It also provides: an adult’s full daily requirementTrusted Source of vitamin K high amounts of vitamin A vitamin C magnesium folate iron calcium antioxidants Vitamin K is essential for a healthy body — especially for strong bones, as it improves the absorption of calcium. Spinach also provides a good amount of iron for energy and healthy blood, and a high level of magnesium for muscle and nerve function. It is also rich in antioxidants, and researchTrusted Source suggests that spinach leaves may lower blood pressure and benefit heart health. If a person is taking blood thinners, such as warfarin (Coumadin), they should use caution when increasing their intake of dark leafy greens. Doctors recommend maintaining a consistent vitamin K intake over time for people taking these medications. How to eat spinach People enjoy spinach raw in salads, sandwiches, and smoothies. Cooked spinach also has significant health benefits and is a great addition to pasta dishes and soups. 2. Kale Kale is a very popular leafy green vegetable products with several health benefits. It provides around 7 caloriesTrusted Source per cup of raw leaves and good amounts of vitamins A, C, and K. Kale may benefit people with high cholesterol. One small 2008 study reports that males with high cholesterol who drank 150 milliliters of kale juice each day for 12 weeks experienced a 10% reduction in low-density lipoprotein, or “bad,” cholesterol and a 27% increase in high-density lipoprotein, or “good,” cholesterol. Research from 2015Trusted Source, meanwhile, suggests that kale juice can reduce blood pressure, blood cholesterol, and blood sugar levels. If a person is taking blood thinners, such as Coumadin, they should use caution when increasing their intake of dark leafy greens. It is best to maintain a consistent vitamin K intake while taking these medications. How to eat kale People use baby kale in pasta dishes, salads, and sandwiches. A person may also enjoy kale chips or juice. 3. Broccoli Broccoli is an incredibly healthful vegetable that belongs to the same family as cabbage, kale, and cauliflower, fresh garlicfresh onion, etc. These are all cruciferous vegetables. Each cup of chopped and boiled broccoli contains: around 31 caloriesTrusted Source the full daily requirement of vitamin K twice the daily recommended amount of vitamin C According to the National Cancer InstituteTrusted Source, animal research has found that certain chemicals, called indoles and isothiocyanates, in cruciferous vegetables may inhibit the development of cancer in several organs, including the bladder, breasts, liver, and stomach. These compounds may protect cells from DNA damage, inactivate cancer-causing agents, and have anti-inflammatory effects. However, research in humans has been mixed. How to eat broccoli Broccoli is very versatile. People can roast it, steam it, fry it, blend it into soups, or enjoy it warm in salads. 4. Peas Peas are a sweet, starchy vegetable. They contain 134 caloriesTrusted Source per cooked cup, and they are rich in: fiber, providing 9 grams (g) per serving protein, providing 9 g per serving vitamins A, C, and K certain B vitamins Green peas are a good source of plant-based protein, which may be especially beneficial for people with vegetarian or vegan diets. Peas and other legumes contain fiber, which supports good bacteria in the gut and helps ensure regular bowel movements and a healthy digestive tract. They are also rich in saponins, plant compounds that may help protect againstTrusted Source oxidative stress and cancer. How to eat peas It might be handy to keep a bag of peas in the freezer and gradually use them to boost the nutritional profiles of pasta dishes, risottos, and curries. A person might also enjoy a refreshing pea and mint soup. 5. Sweet potatoes Sweet potatoes are root vegetables. Baked in its skin, a medium sweet potato provides 103 caloriesTrusted Source and 0.17 g of fat. Each sweet potato also contains: much more than an adult’s daily requirement of vitamin A 25% of their vitamin C and B6 requirements 12% of their potassium requirement beta carotene, which may improve eye health and help fight cancer Sweet potatoes may be a good option for people with diabetes. This is because they are low on the glycemic index and rich in fiber, so they may help regulate blood sugar. How to eat sweet potatoes For a simple meal, bake a sweet potato in its skin and serve it with a source of protein, such as fish or tofu. 6. Beets One cup of raw beets contains: 58.5 caloriesTrusted Source 442 milligrams (mg) of potassium 148 micrograms of folate Beets and beet juice are great for improving heart health, as the vegetable is rich in heart-healthy nitrates. A small 2012 studyTrusted Source reports that drinking 500 g of beet juice significantly lowered blood pressure in healthy people. These vegetables may also benefit people with diabetes. Beets contain an antioxidant called alpha-lipoic acid, which might be helpfulTrusted Source for people with diabetes-related nerve problems, called diabetic neuropathy. How to eat beets Roasting beets brings out their natural sweetness, but they also taste great raw in juices, salads, and sandwiches. 7. Carrots Each cup of chopped carrots contains 52 caloriesTrusted Source and over four times an adult’s daily recommended intake of vitamin A, in the form of beta carotene. Vitamin A is vital for healthy eyesight, and getting enough of this nutrient may help prevent vision loss. Certain nutrients in carrots may also have cancer-fighting properties. A 2018 reviewTrusted Source of 10 articles reports that dietary carrot intake was associated with a reduced risk of breast cancer. How to eat carrots Carrots are extremely versatile. They work well in casseroles and soups, and they provide great health benefits when eaten raw, possibly with a dip such as hummus. 8. Fermented vegetables Fermented vegetables provide all the nutrients of their unfermented counterparts as well as healthful doses of probiotics. Probiotics are beneficial bacteria that are present in the body and in some foods and supplements. Some researchers believe that they can improve gut health. According to the National Center for Complementary and Integrative HealthTrusted Source, probiotics may help with symptoms of irritable bowel syndrome. They may also prevent infection- or antibiotic-induced diarrhea. Some good vegetables for fermentation include: cabbage, as sauerkraut cucumbers, as pickles carrots cauliflower How to eat fermented vegetables People eat fermented vegetables in salads, sandwiches, or as a side dish. 9. Tomatoes Although tomatoes are technically a fruit products, most people treat them like vegetables and use them in savory dishes. Each cup of chopped, raw tomatoes contains: 32 caloriesTrusted Source 427 mg of potassium 24.7 mg of vitamin C Tomatoes contain lycopene, a powerful antioxidant. ResearchTrusted Source suggests that lycopene may help prevent prostate cancer, and the beta carotene in tomatoes also helps combat cancer. Meanwhile, other potent antioxidants in tomatoes, such as lutein and zeaxanthin, may protect vision. The Age-Related Eye Disease StudyTrusted Source reports that people who have high dietary intakes of these substances have a 25% reduced risk of age-related macular degeneration. How to eat tomatoes People enjoy tomatoes raw or cooked, and cooking them releases more lycopene. 10. Garlic People have long used garlic in cooking and medicine. Each garlic clove contains just 4 caloriesTrusted Source and is low in vitamins and minerals. However, garlic is a natural antibiotic. For example, a 2018 reviewTrusted Source notes that people have used garlic for purposes similar to those of antibiotics since the 16th century. Allium, a component of garlic, may be the source of its health benefits. Confirming this will require more research. How to eat garlic Heating garlic reduces its health benefits, so it is best to eat garlic raw, in bruschetta or dips, for example. There is also dried garlic. 11. Onions Each cup of chopped onions can provideTrusted Source: 64 calories vitamin C vitamin B6 manganese Onions and other allium vegetables, including garlic, contain sulfur compounds. Review studies, including a 2019 reviewTrusted Source and a 2015 reviewTrusted Source, suggest that these compounds may help protect against cancer. How to eat onions It can be easy to incorporate onions into soups, stews, stir-fries, and curries. To get the most from their antioxidants, eat them raw — in sandwiches, salads, and dips such as guacamole. 12. Alfalfa sprouts Each cup of alfalfa sprouts contains only 8 caloriesTrusted Source and a good amount of vitamin K. These sprouts also boast several compounds that contribute to good health, including: saponins, a type of bitter compound with health benefits flavonoids, a type of polyphenol known for its anti-inflammatory and antioxidant effects phytoestrogens, plant compounds that are similar to natural estrogens Traditionally, some have used alfalfa sprouts to treat a range of health conditions, such as arthritis and kidney problems. However, very few scientific investigations have explored these uses. Research suggests that alfalfa sprouts contain antioxidants, which are compounds that may help fight diseases including cancer and heart disease. Eating sprouted legumes such as these may have other benefits. StudiesTrusted Source suggest that sprouting, or germinating, seeds increases their protein and amino acid contents. Germination may also improveTrusted Source the digestibility of alfalfa and other seeds and increase their dietary fiber content. How to eat alfalfa sprouts People enjoy alfalfa sprouts in salads and sandwiches. 13. Bell peppers Sweet bell peppers may be red, yellow, or orange. Unripe, green bell peppers are also popular, though they taste less sweet. A cup of chopped red bell pepper provides: 39 caloriesTrusted Source 190 mg of vitamin C 0.434 mg of vitamin B6 folate beta carotene, which the body converts into vitamin A Antioxidants and bioactive chemicals present in bell peppers includeTrusted Source: ascorbic acid carotenoids vitamin C beta carotene flavonoids, such as quercetin and kaempferol How to eat bell peppers Bell peppers are extremely versatile and can be easy to incorporate into pasta, scrambled eggs, or a salad. A person might also enjoy them sliced with a side of guacamole or hummus. 14. Cauliflower One cup of chopped cauliflower contains: 27 caloriesTrusted Source plenty of vitamin C vitamin K fiber The American Heart AssociationTrusted Source recommend eating 25 g of dietary fiber each day to promote heart and gut health. Also, cauliflower and other cruciferous vegetables contain an antioxidant called indole-3-carbinol. ResearchTrusted Source has linked this compound with cancer-combatting effects in animals. However, confirming the effects in humans requires more research. And like broccoli, cauliflower contains another compound that may help combat cancer: sulforaphane. How to eat cauliflower A person can pulse raw cauliflower in a blender to make cauliflower rice or turn it into a pizza base for a low-calorie, comforting treat. People may also enjoy cauliflower in curries or baked with olive oil and garlic. 15. Seaweed Seaweed, also known as sea vegetables, are versatile and nutritious plants that provide several health benefits. Common types of seaweed include: kelp nori sea lettuce spirulina wakame Seaweed is one of the few plant-based sources of the omega-3 fatty acids docosahexaenoic acid and eicosapentaenoic acid. These are essential for health and are mostly present in meat and dairy. Each type of seaweed has a slightly different nutritional profile, but they are typically rich in iodine, which is an essential nutrient for thyroid function. Eating a variety of sea vegetables can provide the body with several important antioxidants to reduce cellular damage. Also, many types of seaweed contain chlorophyll, which is a plant pigment that has anti-inflammatory propertiesTrusted Source. Brown sea vegetables, such as kelp and wakame, contain another potent antioxidant called fucoxanthin. ResearchTrusted Source suggests that this has 13.5 times the antioxidant power of vitamin E. How to eat seaweed When possible, choose organic seaweed and eat small amounts to avoid introducing too much iodine into the diet. People enjoy sea vegetables in sushi, miso soups, and as a seasoning for other dishes. Summary Eating vegetables every day is important for health. They provide essential vitamins, minerals, and other nutrients, such as antioxidants and fiber. Research consistently shows that people who eat at least 5 servings of vegetables a day have the lowest risk of many diseases, including cancer and heart disease. Enjoy a range of vegetables and fruits like fresh apple and fresh oranges, daily to reap as many health benefits as possible.  

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    Tim Harris

    Tim Harris is the Founding Director of Real Change News. Prior to starting the street newspaper in Seattle, in 1992 Tim started Spare Change, an early member of what was then the growing international "street-paper" movement. With lessons learned, Harris moved to Seattle in 1994 to found Real Change, a weekly newspaper whose mission is "Real Change exists to provide opportunity and a voice for low-income and homeless people while taking action for economic, social and racial justice." Harris is also on the Board of Directors of the International Network of Street Papers (INSP), a global network of more that 100 street papers in 34 countries.

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    Quanzhou Aige Trading Co., Ltd. is established in Year 2014. Is located in Jinjiang city, Fujiang Province. We specialized in supplying shoes, including Casual shoes, Sports shoes, Espadrilles shoes, kids shoes, 3D fabric upper, flykint , fully knit upper, jacquard mesh,etc. Even though it is young, but we have very strong team that very thorough management and experienced staff who are very experienced in manufactory in shoes. With more and more competitors, we have a more intense and sharper sense of fashion with the full understanding of the market and the professional of various sports shoes and shoes material. We could always satisfy customers of different consumption levels with most fashionable products at most affordable prices. We pay much attention to track customers’ feedback after sales since we always want to improve ourselves to make every customer satisfied. The advantages of our company: We have own factory and many good cooperation facrtories; We have professional design team; We have more than 20 staff for the development part; We have strictly quality control staff and QC team; Good quality and reasonable pricing; We are strictly control delivery day; We have a system of thorough after-sales service. Our company’s aim is to be innovative in development and supreme service. Mesh Running Shoes factory website:

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    Tobias Franklin

    I am a NextGen Fellow at the ABA Center for Innovation. I study the field of housing law, and develop software to offer effective interventions for tenants who are struggling to obtain rental housing and avoid eviction. I am always looking to connect with scholars and advocates in the housing law space, especially folks with a background in tenant screening law and the Fair Credit Reporting Act.

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    Toby Grytafey

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    Tomato paste is an essential pantry staple to have on hand for whipping up delicious, deeply flavored meals-it can transform a ho-hum recipe, like a soup or sauce, into something really special. A little bit goes a long way, though, which is why you will most often find tomato paste in small 6-ounce cans. With most recipes only calling for a tablespoon or two of tomato paste, even if you buy the tiniest can, you will still have so much leftover. You can always refrigerate the rest (and hope you remember to use it before it starts growing mold) or freeze it for use down the road (read more on the best way to do this below). Or, better yet, you could make the shift from canned tomato paste to tomato paste in a tube (maybe our favorite option). Here is what you need to know about tomato paste in general, why you should try buying it in a tube, and what to make once you have it. What Is Tomato Paste? First things first. What is tomato paste, anyway? Tomato paste is basically super-concentrated tomato sauce. If you take tomatoes and cook them down, strain the skin and seeds from the mixture and continue to cook the sauce down until it forms a thick consistency, you get sachet tomato paste. Manufactured tomato pastes often include a stabilizer, like citric acid, and salt (you can also find no-salt-added options), and sometimes herbs and spices. There are also options for double-concentrated and triple-concentrated tomato ketchup, meaning it is even more potent.   Why You Need Tomato Paste in Your Pantry The benefit of using tomato ketchup sachet over other canned tomatoes (like tomato puree, crushed tomatoes or diced tomatoes) or even fresh tomatoes, is that you get the deep tomato flavor without all the extra water, making it great for recipes where you do not want a ton of liquid, like meatloaf or taco filling. Tomato paste can be used to intensify flavor over time in slow-cooked recipes or can quickly add a burst of flavor in quick 30-minute recipes for weeknights. To get the most flavor potential out of your tomato paste, plan to add it early on in the cooking process before adding liquids like water, broth or other canned tomatoes. This way, the tomatoes have the chance to caramelize and develop even further.   Tomato Paste in a Tube Exists and You Need It in Your Life Yes, it exists and yes, you need to buy it. Tubed tomato paste is a convenient alternative to canned tomato paste that lets you use just what you need, without worrying about what to do with the rest of the can. It is made the same exact same way as the canned stuff but is packaged in a convenient squeezable tube with a screw cap that preserves the bulk tomato paste for longer. Most tubes are 4.5 ounces and yield 9 tablespoons, which is comparable to the 6-ounce cans that contain 10 tablespoons of tomato paste. Look for tubed tomato paste on the shelf next to the canned tomato ketchup, or if your grocery store does not carry it, you can buy it here. While it is a little pricier than its canned counterpart-$3.79 for a 4.5-ounce tube versus $1.19 for a 6-ounce can-you will ultimately get more value out of the tube by wasting less.   How to Use Tomato Paste There are so many delicious ideas for how to use tomato paste. Want to whip up a quick homemade tomato sauce? What about a creamy tomato soup to go along with your grilled cheese? Tomato paste is a key ingredient that will add tons of tomatoey flavor quickly. Beyond the obvious option of using 220L drum tomato paste to make a tomato-heavy recipe, like sauce or soup, you can also use tomato paste to elevate the flavor of other recipes-like we did in this Jackfruit Sloppy Joes recipe, in the dipping sauce for these Air-Fryer Zucchini Fries and in our Slow-Cooker Butter Chicken recipe. When to Use Tomato Paste in a Tube All of these recipes use tomato paste in different ways and call for just a few tablespoons, which is where tomato paste in a tube comes in handy, so you can use just what you need. Rather than using store-bought taco seasoning that can be super high in sodium, try the homemade variation in this stuffed sweet potato recipe that uses tomato paste to add extra flavor.  

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    The reception table is adopt "Dingli" brand fire-proof decorative panel, reach the E0 level environmental protection standard; veneer: high-quality wear-resistant trimethy lamine impregnated finish "xiongyi" PVC edge banding; use thickening treatment on the table to make the product more stable and atmospheric. The registration desk is made of super fiber leather, which is comfortable. Quick Details Type:Office Furniture,Reception deskSpecific Use:Office room reception desk General Use:Commercial Furniture, office FurnitureMaterial:Wooden+Synthetic leather Place of Origin:Hangzhou, ChinaAppearance:Modern Brand Name:GEVANCOProduct Name: Reception table Model Number:RD03.42Color:Dark Oak Style:Modern DesignsShape:I-Shape Size:4200W*820D*1060HMain Material:melamine CBM:0.77Design:Customzied Supply Ability Supply Ability:800 Piece/Pieces per MonthWholesale Front Table website:

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